User Manual
10
7
MN024-08
UL2 optical
power fail
UL2 optical power is
too low
RU2 MAJOR CLOSED
UL3 optical
power fail
UL3 optical power is
too low
RU3 MAJOR CLOSED
UL4 optical
power fail
UL4 optical power is
too low
RU4 MAJOR
clean the optical
connectors. If the
alarm still persists it
reveals a laser fault
so return the unit
CLOSED
DL1 optical
power fail
DL1 optical power is
too low
RU1 MAJOR CLOSED
DL2 optical
power fail
DL2 optical power is
too low
RU2 MAJOR CLOSED
DL3 optical
power fail
DL3 optical power is
too low
RU3 MAJOR CLOSED
DL4 optical
power fail
DL4 optical power is
too low
RU4 MAJOR
Check for fibre or
splice stresses and
clean the optical
connectors. If alarm
still persists it
reveals a laser fault
so return the unit
CLOSED
UL1 AGC out
of range
The optical power
received on UL1 is too
low and can’t no more
be compensated
RU1
MINOR
(flashing)
OPEN
UL2 AGC out
of range
The optical power
received on UL2 is too
low and can’t no more
be compensated
RU2
MINOR
(flashing)
OPEN
UL3 AGC out
of range
The optical power
received on UL3 is too
low and can’t no more
be compensated
RU3
MINOR
(flashing)
OPEN
UL4 AGC out
of range
The optical power
received on UL4 is too
low and can’t no more
be compensated
RU4
MINOR
(flashing)
Check for fibre or
splice stresses and
clean the optical
connectors. If alarm
still persists it
reveals a laser fault
so return the unit
OPEN
DL1 AGC out
of range
The optical power
received on UL1 is too
low and can’t no more
be compensated
RU1
MINOR
(flashing)
OPEN
DL2 AGC out
of range
The optical power
received on UL2 is too
low and can’t no more
be compensated
RU2
MINOR
(flashing)
OPEN
DL3 AGC out
of range
The optical power
received on UL3 is too
low and can’t no more
be compensated
RU3
MINOR
(flashing)
OPEN
DL4 AGC out
of range
The optical power
received on UL4 is too
low and can’t no more
be compensated
RU4
MINOR
(flashing)
Check for fibre or
splice stresses and
clean the optical
connectors. If alarm
still persists it
reveals a laser fault
so return the unit
OPEN
DL1 RF alarm DL1 RF amplifier RU1 MAJOR Return the unit CLOSED
DL2 RF alarm DL2 RF amplifier RU2 MAJOR Return the unit CLOSED
DL3 RF alarm DL3 RF amplifier RU3 MAJOR Return the unit CLOSED
DL4 RF alarm DL4 RF amplifier RU4 MAJOR Return the unit CLOSED
RU1 External 1
alarm
External 1 alarm from
RU1
RU1 MAJOR
Check the external
device connected to
external 1 and the
RU1 dry-contact
functionality
CLOSED
RU2 External 1
alarm
External 1 alarm from
RU2
RU2 MAJOR
Check the external
device connected to
external 1 and the
RU2 dry-contact
functionality
CLOSED
RU3 External 1
alarm
External 1 alarm from
RU3
RU3 MAJOR
Check the external
device connected to
external 1 and the
RU3 dry-contact
functionality
CLOSED
RU4 External 1
alarm
External 1 alarm from
RU41
RU4 MAJOR
Check the external
device connected to
external 1 and the
CLOSED